202791140 has 12 divisors (see below), whose sum is σ = 425861436. Its totient is φ = 81116448.

The previous prime is 202791101. The next prime is 202791143. The reversal of 202791140 is 41197202.

It can be written as a sum of positive squares in 2 ways, for example, as 57395776 + 145395364 = 7576^2 + 12058^2 .

It is a super-2 number, since 2×202791140² = 82248492924999200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (202791143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5069759 + ... + 5069798.

It is an arithmetic number, because the mean of its divisors is an integer number (35488453).

Almost surely, 2^202791140 is an apocalyptic number.

202791140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202791140 is an abundant number, since it is smaller than the sum of its proper divisors (223070296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202791140 is a wasteful number, since it uses less digits than its factorization.

202791140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10139566 (or 10139564 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 202791140 is about 14240.4754134123. The cubic root of 202791140 is about 587.5114372302.

The spelling of 202791140 in words is "two hundred two million, seven hundred ninety-one thousand, one hundred forty".